I needed a simple file management tool, with the ability to control groups and access. I downloaded the trial of RSFiles, and was able to create a download directory quickly, then apply all the group permissions I'd already set up using JACL Plus without having to do anything extra in RSFiles.
It all took about 10 minutes, and now it's working just fine.
I'm very impressed, and recommend this component highly for anyone who's looking for a very simple method for controlling file downloads.

Generally in life you can get something good, something fast, something cheap... Choose any two out of those three.
I needed to put together a number of registration forms for an event very quickly, with almost no budget, and it all needed to work immediately.
So I downloaded the free trial version of ChronoForms, built my forms in Dreamweaver, copied and pasted the code into the component and spent a couple of hours tweaking the site.
I'm amazed at how easy it was to implement, how simple the process is to understand (I'm a designer, not a coder), and how succesful it's been for me.
I pitched the registration forms to my client, in competition with a major event management company, and because this solution allowed me to design the entire look & feel to match their existing site, we got the job.
So I've paid the license fee happily.

I can't recommend it highly enough.

Only shortcomings are the lack of a data export interface for the component to allow saving the data out as CSV or XML or similar, but I can do that directly from the database, so no big issue for me.

If you prefer to design a form your own way, rather than have to conform to somebody elses idea of how a form should appear, then this is your answer. Genius.